When creating maps with D3, the
path SVG tag is used most often. Using the definition from W3C, you can think of the
path tag as a series of commands that explain how to draw any shape by moving a pen on a piece of paper. The
path commands start with the location to place the pen on and then contain a series of follow-up commands that tell the pen how to connect additional points with lines. The path shapes can also be filled or have their outline styled.
Let's look at a very simple example to replicate the triangle we created as a polygon.
Open your browser, go to
http://localhost:8080/chapter-2/path.html, and you will see the following output on your screen:
Right-click anywhere in the triangle and select Inspect element.
path command for ...